L-Tryptophan, 1-[(1,1-dimethylethoxy)carbonyl]-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-, 2-carboxy-2-[[(1,1-dimethylethoxy)carbonyl]amino]ethyl ester CAS 944283-24-3
| CAS No. | 944283-24-3 |
| Molecular Formula | C39H43N3O10 |
| Molecular Weight | 713.77 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of L-Tryptophan, 1-[(1,1-dimethylethoxy)carbonyl]-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-, 2-carboxy-2-[[(1,1-dimethylethoxy)carbonyl]amino]ethyl ester is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
L-Tryptophan, 1-[(1,1-dimethylethoxy)carbonyl]-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-, 2-carboxy-2-[[(1,1-dimethylethoxy)carbonyl]amino]ethyl ester (CAS 944283-24-3) is a high-purity analytical reference standard with the molecular formula C39H43N3O10 and a molecular weight of 713.77 g/mol.
L-Tryptophan, 1-[(1,1-dimethylethoxy)carbonyl]-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-, 2-carboxy-2-[[(1,1-dimethylethoxy)carbonyl]amino]ethyl ester (C39H43N3O10) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C39H43N3O10 |
| Molecular Weight | 713.77 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
Related L Standards
- Tryptophan Impurity 49 (CAS CATO-C4X-137349)
- Tryptophan Impurity 10 (CAS 84771-20-0)
- Tryptophan impurity 37 (CAS CATO-C4X-137337)
- Tryptophan EP Impurity A (CAS 132685-02-0)
- Tryptophan Impurity 52 (CAS CATO-C4X-137352)
- Tryptophan impurity 39 (CAS CATO-C4X-137339)
- Tryptophan impurity 40 (CAS CATO-C4X-137340)
- Tryptophan EP Impurity J (CAS 164068-19-3)
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